Preparation of catalyst for processing industrial wastewater and using method thereof

Abstract

The invention provides a preparation and application method for treating a catalyst of industrial waste water. The preparation method of the invention adopts a molecular sieve as a carrier, one or a plurality of P-type semiconductor oxides such as MnO2, CeO2, Ag2O, CuO, etc. is / ,are loaded on the molecular sieve in a way of ion-exchange and finally a supported catalyst containing the P-type semiconductor oxides is obtained through molding; and the catalyst is used when ozone and light are coexisted. The preparation and application method of the invention aims at the disadvantages of that active constituents of the catalyst and an addition agent in the combination technique of ozone and catalyst are lost easily, active constituents are loaded on the molecular sieve carrier in the way of ion-exchange so as to improve the combination binding capacity of the active constituents and the carrier; and an electronic addition agent can be substituted through a light electro-donating effect, so as to effectively provide electrons in a long term and promote the catalyst and the ozone to generate active matters; the coaction of the catalyst and the ozone can enhance the activity stability of the catalyst and prolong service life, thus being conducive to industrialization of the technologies.

Description

technical field [0001] The invention belongs to the field of chemical catalysts, and more specifically relates to the preparation and application method of a catalyst for treating industrial wastewater. Background technique [0002] Treatment and reuse of industrial wastewater is a major aspect of environmentally friendly production. The widely used industrial wastewater treatment technologies are conventional methods such as physical adsorption, chemical precipitation and microbial decomposition. These treatment methods cannot completely remove the pollutants in the wastewater, and the treated wastewater cannot be reused. For this reason, wastewater treated by conventional processes must undergo deep oxidation treatment through wet catalytic oxidation, electrolytic oxidation, ozone oxidation, photocatalysis, and room temperature catalysis to further reduce pollutants in wastewater. However, these methods have their own disadvantages: the wet catalytic oxidation process re...

AI Technical Summary

Problems solved by technology

However, these methods have their own disadvantages: the wet catalytic oxidation process requires high temperature and consumes a lot of energy; the electrolytic oxidation process not only consumes energy, but also has low processing capacity; Advanced treatment of oxidized pollutants, but the treatment capacity is very limited; room temperature catalytic oxidation process has weak treatment capacity and limited applicable objects

However, the long-term use of the catalyst in the solution will cause the loss of active components and additives, resulting in the catalyst being easily deactivated and unable to achieve industrialization.

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